#if UNITY_EDITOR || UNITY_ANDROID

using UnityEngine;
using System;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Collections.Generic;


namespace UnityEngine
{
	public delegate void AndroidJavaRunnable();

	public sealed class AndroidJavaException : Exception
	{
		internal AndroidJavaException(string message) : base(message) {	}
	}


	internal class AndroidJavaRunnableProxy : AndroidJavaProxy
	{
		private AndroidJavaRunnable mRunnable;
		public AndroidJavaRunnableProxy(AndroidJavaRunnable runnable) : base("java/lang/Runnable") { mRunnable = runnable; }
		public void run() { mRunnable(); }
	}

	public class AndroidJavaProxy
	{

		public readonly AndroidJavaClass javaInterface;
		public AndroidJavaProxy(string javaInterface) : this(new AndroidJavaClass(javaInterface)) {}
		public AndroidJavaProxy(AndroidJavaClass javaInterface)
		{
			this.javaInterface = javaInterface;
		}

		public virtual AndroidJavaObject Invoke(string methodName, object[] args)
		{
			Exception error = null;
			BindingFlags binderFlags = BindingFlags.Instance | BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic;
			Type[] argTypes = new Type[args.Length];
			for (int i = 0; i < args.Length; ++i)
				argTypes[i] = args[i] == null ? typeof(AndroidJavaObject) : args[i].GetType();
			try
			{
				MethodInfo method = GetType().GetMethod(methodName, binderFlags, null, argTypes, null);
				if (method != null)
					return _AndroidJNIHelper.Box(method.Invoke(this, args));
			}
			catch (TargetInvocationException invocationError)
			{
				error = invocationError.InnerException;
			}
			catch (Exception invocationError)
			{
				error = invocationError;
			}

			// Log error
			string[] argTypeNames = new string[args.Length];
			for (int i = 0; i < argTypes.Length; ++i)
				argTypeNames[i] = argTypes[i].ToString();

			if (error != null)
				throw new TargetInvocationException(GetType() + "." + methodName + "(" + string.Join(",", argTypeNames) + ")", error);

			throw new Exception("No such proxy method: " + GetType() + "." + methodName + "(" + string.Join(",", argTypeNames) + ")");
		}

		public virtual AndroidJavaObject Invoke(string methodName, AndroidJavaObject[] javaArgs)
		{
			object[] args =  new object[javaArgs.Length];
			for (int i = 0; i < javaArgs.Length; ++i)
				args[i] = _AndroidJNIHelper.Unbox(javaArgs[i]);
			return Invoke(methodName, args);
		}
	}

	public partial class AndroidJavaObject
	{
		//===================================================================

		private static bool enableDebugPrints = false;

		protected void DebugPrint(string msg)
		{
			if (!enableDebugPrints)
				return;
			Debug.Log(msg);
		}
		protected void DebugPrint(string call, string methodName, string signature, object[] args)
		{
			if (!enableDebugPrints)
				return;
			System.Text.StringBuilder sb = new System.Text.StringBuilder();
			foreach (object obj in args)
			{
				sb.Append(", ");
				sb.Append(obj == null ? "<null>" : obj.GetType().ToString());
			}
			Debug.Log(call + "(\"" + methodName + "\"" + sb.ToString() + ") = " + signature);
		}

		//===================================================================

		private void _AndroidJavaObject(string className, params object[] args)
		{
			DebugPrint("Creating AndroidJavaObject from " + className);
			if (args==null) args = new object[] { null };
			using (var clazz = FindClass(className))
			{
				m_jclass = AndroidJNI.NewGlobalRef(clazz.GetRawObject());
				jvalue[] jniArgs = AndroidJNIHelper.CreateJNIArgArray(args);
				try
				{
					IntPtr constructorID = AndroidJNIHelper.GetConstructorID(m_jclass, args);
					IntPtr jobject = AndroidJNISafe.NewObject(m_jclass, constructorID, jniArgs);
					m_jobject = AndroidJNI.NewGlobalRef(jobject);
					AndroidJNISafe.DeleteLocalRef(jobject);
				}
				finally
				{
					AndroidJNIHelper.DeleteJNIArgArray(args, jniArgs);
				}
			}
		}
		internal AndroidJavaObject(IntPtr jobject) : this()  // should be protected and friends with AndroidJNIHelper..
		{
			if (jobject == IntPtr.Zero)
			{
				throw new Exception("JNI: Init'd AndroidJavaObject with null ptr!");
			}

			IntPtr jclass = AndroidJNISafe.GetObjectClass(jobject);
			m_jobject = AndroidJNI.NewGlobalRef(jobject);
			m_jclass = AndroidJNI.NewGlobalRef(jclass);
			AndroidJNISafe.DeleteLocalRef(jclass);
		}

		internal AndroidJavaObject()
		{
		}

		~AndroidJavaObject()
		{
			Dispose(true);
		}

		private bool m_disposed = false;
		protected virtual void Dispose(bool disposing)
		{
			if(m_disposed)
				return;

			m_disposed = true;

			AndroidJNISafe.DeleteGlobalRef(m_jobject);
			AndroidJNISafe.DeleteGlobalRef(m_jclass);
		}
		protected void _Dispose()
		{
			Dispose(true);
			GC.SuppressFinalize(this);
		}

		//===================================================================

		protected void _Call(string methodName, params object[] args)
		{
			if (args==null) args = new object[] { null };
			IntPtr methodID = AndroidJNIHelper.GetMethodID(m_jclass, methodName, args, false);
			jvalue[] jniArgs = AndroidJNIHelper.CreateJNIArgArray(args);
			try
			{
				AndroidJNISafe.CallVoidMethod(m_jobject, methodID, jniArgs);
			}
			finally
			{
				AndroidJNIHelper.DeleteJNIArgArray(args, jniArgs);
			}
		}
		protected ReturnType _Call<ReturnType>(string methodName, params object[] args)
		{
			if (args==null) args = new object[] { null };
			IntPtr methodID = AndroidJNIHelper.GetMethodID<ReturnType>(m_jclass, methodName, args, false);
			jvalue[] jniArgs = AndroidJNIHelper.CreateJNIArgArray(args);
			try
			{
				if (typeof(ReturnType).IsPrimitive)
				{
					if (typeof(ReturnType) == typeof(Int32))
						return (ReturnType)(object)AndroidJNISafe.CallIntMethod(m_jobject, methodID, jniArgs);
					else if (typeof(ReturnType) == typeof(Boolean))
						return (ReturnType)(object)AndroidJNISafe.CallBooleanMethod(m_jobject, methodID, jniArgs);
					else if (typeof(ReturnType) == typeof(Byte))
						return (ReturnType)(object)AndroidJNISafe.CallByteMethod(m_jobject, methodID, jniArgs);
					else if (typeof(ReturnType) == typeof(Int16))
						return (ReturnType)(object)AndroidJNISafe.CallShortMethod(m_jobject, methodID, jniArgs);
					else if (typeof(ReturnType) == typeof(Int64))
						return (ReturnType)(object)AndroidJNISafe.CallLongMethod(m_jobject, methodID, jniArgs);
					else if (typeof(ReturnType) == typeof(Single))
						return (ReturnType)(object)AndroidJNISafe.CallFloatMethod(m_jobject, methodID, jniArgs);
					else if (typeof(ReturnType) == typeof(Double))
						return (ReturnType)(object)AndroidJNISafe.CallDoubleMethod(m_jobject, methodID, jniArgs);
					else if (typeof(ReturnType) == typeof(Char))
						return (ReturnType)(object)AndroidJNISafe.CallCharMethod(m_jobject, methodID, jniArgs);
				}
				else if (typeof(ReturnType) == typeof(String))
					return (ReturnType)(object)AndroidJNISafe.CallStringMethod(m_jobject, methodID, jniArgs);
				else if (typeof(ReturnType) == typeof(AndroidJavaClass))
				{
					IntPtr jclass = AndroidJNISafe.CallObjectMethod(m_jobject, methodID, jniArgs);
					return (ReturnType)(object)AndroidJavaClassDeleteLocalRef(jclass);
				}
				else if (typeof(ReturnType) == typeof(AndroidJavaObject))
				{
					IntPtr jobject = AndroidJNISafe.CallObjectMethod(m_jobject, methodID, jniArgs);
					return (ReturnType)(object)AndroidJavaObjectDeleteLocalRef(jobject);
				}
				else if (typeof(System.Array).IsAssignableFrom(typeof(ReturnType)))
				{
					IntPtr jobject = AndroidJNISafe.CallObjectMethod(m_jobject, methodID, jniArgs);
					return (ReturnType)(object)AndroidJNIHelper.ConvertFromJNIArray<ReturnType>(jobject);
				}
				else
				{
					throw new Exception("JNI: Unknown return type '" + typeof(ReturnType) + "'");
				}
				return default(ReturnType);
			}
			finally
			{
				AndroidJNIHelper.DeleteJNIArgArray(args, jniArgs);
			}
		}

		//===================================================================

		protected FieldType _Get<FieldType>(string fieldName)
		{
			IntPtr fieldID = AndroidJNIHelper.GetFieldID<FieldType>(m_jclass, fieldName, false);
			if (typeof(FieldType).IsPrimitive)
			{
				if (typeof(FieldType) == typeof(Int32))
					return (FieldType)(object)AndroidJNISafe.GetIntField(m_jobject, fieldID);
				else if (typeof(FieldType) == typeof(Boolean))
					return (FieldType)(object)AndroidJNISafe.GetBooleanField(m_jobject, fieldID);
				else if (typeof(FieldType) == typeof(Byte))
					return (FieldType)(object)AndroidJNISafe.GetByteField(m_jobject, fieldID);
				else if (typeof(FieldType) == typeof(Int16))
					return (FieldType)(object)AndroidJNISafe.GetShortField(m_jobject, fieldID);
				else if (typeof(FieldType) == typeof(Int64))
					return (FieldType)(object)AndroidJNISafe.GetLongField(m_jobject, fieldID);
				else if (typeof(FieldType) == typeof(Single))
					return (FieldType)(object)AndroidJNISafe.GetFloatField(m_jobject, fieldID);
				else if (typeof(FieldType) == typeof(Double))
					return (FieldType)(object)AndroidJNISafe.GetDoubleField(m_jobject, fieldID);
				else if (typeof(FieldType) == typeof(Char))
					return (FieldType)(object)AndroidJNISafe.GetCharField(m_jobject, fieldID);
			}
			else if (typeof(FieldType) == typeof(String))
				return (FieldType)(object)AndroidJNISafe.GetStringField(m_jobject, fieldID);
			else if (typeof(FieldType) == typeof(AndroidJavaClass))
			{
				IntPtr jclass = AndroidJNISafe.GetObjectField(m_jobject, fieldID);
				return (FieldType)(object)AndroidJavaClassDeleteLocalRef(jclass);
			}
			else if (typeof(FieldType) == typeof(AndroidJavaObject))
			{
				IntPtr jobject = AndroidJNISafe.GetObjectField(m_jobject, fieldID);
				return (FieldType)(object)AndroidJavaObjectDeleteLocalRef(jobject);
			}
			else if (typeof(System.Array).IsAssignableFrom(typeof(FieldType)))
			{
				IntPtr jobject = AndroidJNISafe.GetObjectField(m_jobject, fieldID);
				return (FieldType)(object)AndroidJNIHelper.ConvertFromJNIArray<FieldType>(jobject);
			}
			else
			{
				throw new Exception("JNI: Unknown field type '" + typeof(FieldType) + "'");
			}
			return default(FieldType);
		}
		protected void _Set<FieldType>(string fieldName, FieldType val)
		{
			IntPtr fieldID = AndroidJNIHelper.GetFieldID<FieldType>(m_jclass, fieldName, false);
			if (typeof(FieldType).IsPrimitive)
			{
				if (typeof(FieldType) == typeof(Int32))
					AndroidJNISafe.SetIntField(m_jobject, fieldID, (Int32)(object)val);
				else if (typeof(FieldType) == typeof(Boolean))
					AndroidJNISafe.SetBooleanField(m_jobject, fieldID, (Boolean)(object)val);
				else if (typeof(FieldType) == typeof(Byte))
					AndroidJNISafe.SetByteField(m_jobject, fieldID, (Byte)(object)val);
				else if (typeof(FieldType) == typeof(Int16))
					AndroidJNISafe.SetShortField(m_jobject, fieldID, (Int16)(object)val);
				else if (typeof(FieldType) == typeof(Int64))
					AndroidJNISafe.SetLongField(m_jobject, fieldID, (Int64)(object)val);
				else if (typeof(FieldType) == typeof(Single))
					AndroidJNISafe.SetFloatField(m_jobject, fieldID, (Single)(object)val);
				else if (typeof(FieldType) == typeof(Double))
					AndroidJNISafe.SetDoubleField(m_jobject, fieldID, (Double)(object)val);
				else if (typeof(FieldType) == typeof(Char))
					AndroidJNISafe.SetCharField(m_jobject, fieldID, (Char)(object)val);
			}
			else if (typeof(FieldType) == typeof(String))
				AndroidJNISafe.SetStringField(m_jobject, fieldID, (String)(object)val);
			else if (typeof(FieldType) == typeof(AndroidJavaClass))
			{
				AndroidJNISafe.SetObjectField(m_jobject, fieldID, ((AndroidJavaClass)(object)val).m_jclass);
			}
			else if (typeof(FieldType) == typeof(AndroidJavaObject))
			{
				AndroidJNISafe.SetObjectField(m_jobject, fieldID, ((AndroidJavaObject)(object)val).m_jobject);
			}
			else if (typeof(System.Array).IsAssignableFrom(typeof(FieldType)))
			{
				IntPtr jobject = AndroidJNIHelper.ConvertToJNIArray((Array)(object)val);
				AndroidJNISafe.SetObjectField(m_jclass, fieldID, jobject);
			}
			else
			{
				throw new Exception("JNI: Unknown field type '" + typeof(FieldType) + "'");
			}
		}

		//===================================================================

		protected void _CallStatic(string methodName, params object[] args)
		{
			if (args==null) args = new object[] { null };
			IntPtr methodID = AndroidJNIHelper.GetMethodID(m_jclass, methodName, args, true);
			jvalue[] jniArgs = AndroidJNIHelper.CreateJNIArgArray(args);
			try
			{
				AndroidJNISafe.CallStaticVoidMethod(m_jclass, methodID, jniArgs);
			}
			finally
			{
				AndroidJNIHelper.DeleteJNIArgArray(args, jniArgs);
			}
		}
		protected ReturnType _CallStatic<ReturnType>(string methodName, params object[] args)
		{
			if (args==null) args = new object[] { null };
			IntPtr methodID = AndroidJNIHelper.GetMethodID<ReturnType>(m_jclass, methodName, args, true);
			jvalue[] jniArgs = AndroidJNIHelper.CreateJNIArgArray(args);
			try
			{
				if (typeof(ReturnType).IsPrimitive)
				{
					if (typeof(ReturnType) == typeof(Int32))
						return (ReturnType)(object)AndroidJNISafe.CallStaticIntMethod(m_jclass, methodID, jniArgs);
					else if (typeof(ReturnType) == typeof(Boolean))
						return (ReturnType)(object)AndroidJNISafe.CallStaticBooleanMethod(m_jclass, methodID, jniArgs);
					else if (typeof(ReturnType) == typeof(Byte))
						return (ReturnType)(object)AndroidJNISafe.CallStaticByteMethod(m_jclass, methodID, jniArgs);
					else if (typeof(ReturnType) == typeof(Int16))
						return (ReturnType)(object)AndroidJNISafe.CallStaticShortMethod(m_jclass, methodID, jniArgs);
					else if (typeof(ReturnType) == typeof(Int64))
						return (ReturnType)(object)AndroidJNISafe.CallStaticLongMethod(m_jclass, methodID, jniArgs);
					else if (typeof(ReturnType) == typeof(Single))
						return (ReturnType)(object)AndroidJNISafe.CallStaticFloatMethod(m_jclass, methodID, jniArgs);
					else if (typeof(ReturnType) == typeof(Double))
						return (ReturnType)(object)AndroidJNISafe.CallStaticDoubleMethod(m_jclass, methodID, jniArgs);
					else if (typeof(ReturnType) == typeof(Char))
						return (ReturnType)(object)AndroidJNISafe.CallStaticCharMethod(m_jclass, methodID, jniArgs);
				}
				else if (typeof(ReturnType) == typeof(String))
					return (ReturnType)(object)AndroidJNISafe.CallStaticStringMethod(m_jclass, methodID, jniArgs);
				else if (typeof(ReturnType) == typeof(AndroidJavaClass))
				{
					IntPtr jclass = AndroidJNISafe.CallStaticObjectMethod(m_jclass, methodID, jniArgs);
					return (ReturnType)(object)AndroidJavaClassDeleteLocalRef(jclass);
				}
				else if (typeof(ReturnType) == typeof(AndroidJavaObject))
				{
					IntPtr jobject = AndroidJNISafe.CallStaticObjectMethod(m_jclass, methodID, jniArgs);
					return (ReturnType)(object)AndroidJavaObjectDeleteLocalRef(jobject);
				}
				else if (typeof(System.Array).IsAssignableFrom(typeof(ReturnType)))
				{
					IntPtr jobject = AndroidJNISafe.CallStaticObjectMethod(m_jclass, methodID, jniArgs);
					return (ReturnType)(object)AndroidJNIHelper.ConvertFromJNIArray<ReturnType>(jobject);
				}
				else
				{
					throw new Exception("JNI: Unknown return type '" + typeof(ReturnType) + "'");
				}

				return default(ReturnType);
			}
			finally
			{
				AndroidJNIHelper.DeleteJNIArgArray(args, jniArgs);
			}
		}

		//===================================================================

		protected FieldType _GetStatic<FieldType>(string fieldName)
		{
			IntPtr fieldID = AndroidJNIHelper.GetFieldID<FieldType>(m_jclass, fieldName, true);
			if (typeof(FieldType).IsPrimitive)
			{
				if (typeof(FieldType) == typeof(Int32))
					return (FieldType)(object)AndroidJNISafe.GetStaticIntField(m_jclass, fieldID);
				else if (typeof(FieldType) == typeof(Boolean))
					return (FieldType)(object)AndroidJNISafe.GetStaticBooleanField(m_jclass, fieldID);
				else if (typeof(FieldType) == typeof(Byte))
					return (FieldType)(object)AndroidJNISafe.GetStaticByteField(m_jclass, fieldID);
				else if (typeof(FieldType) == typeof(Int16))
					return (FieldType)(object)AndroidJNISafe.GetStaticShortField(m_jclass, fieldID);
				else if (typeof(FieldType) == typeof(Int64))
					return (FieldType)(object)AndroidJNISafe.GetStaticLongField(m_jclass, fieldID);
				else if (typeof(FieldType) == typeof(Single))
					return (FieldType)(object)AndroidJNISafe.GetStaticFloatField(m_jclass, fieldID);
				else if (typeof(FieldType) == typeof(Double))
					return (FieldType)(object)AndroidJNISafe.GetStaticDoubleField(m_jclass, fieldID);
				else if (typeof(FieldType) == typeof(Char))
					return (FieldType)(object)AndroidJNISafe.GetStaticCharField(m_jclass, fieldID);
			}
			else if (typeof(FieldType) == typeof(String))
				return (FieldType)(object)AndroidJNISafe.GetStaticStringField(m_jclass, fieldID);
			else if (typeof(FieldType) == typeof(AndroidJavaClass))
			{
				IntPtr jclass = AndroidJNISafe.GetStaticObjectField(m_jclass, fieldID);
				return (FieldType)(object)AndroidJavaClassDeleteLocalRef(jclass);
			}
			else if (typeof(FieldType) == typeof(AndroidJavaObject))
			{
				IntPtr jobject = AndroidJNISafe.GetStaticObjectField(m_jclass, fieldID);
				return (FieldType)(object)AndroidJavaObjectDeleteLocalRef(jobject);
			}
			else if (typeof(System.Array).IsAssignableFrom(typeof(FieldType)))
			{
				IntPtr jobject = AndroidJNISafe.GetStaticObjectField(m_jclass, fieldID);
				return (FieldType)(object)AndroidJNIHelper.ConvertFromJNIArray<FieldType>(jobject);
			}
			else
			{
				throw new Exception("JNI: Unknown field type '" + typeof(FieldType) + "'");
			}
			return default(FieldType);
		}
		protected void _SetStatic<FieldType>(string fieldName, FieldType val)
		{
			IntPtr fieldID = AndroidJNIHelper.GetFieldID<FieldType>(m_jclass, fieldName, true);
			if (typeof(FieldType).IsPrimitive)
			{
				if (typeof(FieldType) == typeof(Int32))
					AndroidJNISafe.SetStaticIntField(m_jclass, fieldID, (Int32)(object)val);
				else if (typeof(FieldType) == typeof(Boolean))
					AndroidJNISafe.SetStaticBooleanField(m_jclass, fieldID, (Boolean)(object)val);
				else if (typeof(FieldType) == typeof(Byte))
					AndroidJNISafe.SetStaticByteField(m_jclass, fieldID, (Byte)(object)val);
				else if (typeof(FieldType) == typeof(Int16))
					AndroidJNISafe.SetStaticShortField(m_jclass, fieldID, (Int16)(object)val);
				else if (typeof(FieldType) == typeof(Int64))
					AndroidJNISafe.SetStaticLongField(m_jclass, fieldID, (Int64)(object)val);
				else if (typeof(FieldType) == typeof(Single))
					AndroidJNISafe.SetStaticFloatField(m_jclass, fieldID, (Single)(object)val);
				else if (typeof(FieldType) == typeof(Double))
					AndroidJNISafe.SetStaticDoubleField(m_jclass, fieldID, (Double)(object)val);
				else if (typeof(FieldType) == typeof(Char))
					AndroidJNISafe.SetStaticCharField(m_jclass, fieldID, (Char)(object)val);
			}
			else if (typeof(FieldType) == typeof(String))
				AndroidJNISafe.SetStaticStringField(m_jclass, fieldID, (String)(object)val);
			else if (typeof(FieldType) == typeof(AndroidJavaClass))
			{
				AndroidJNISafe.SetStaticObjectField(m_jclass, fieldID, ((AndroidJavaClass)(object)val).m_jclass);
			}
			else if (typeof(FieldType) == typeof(AndroidJavaObject))
			{
				AndroidJNISafe.SetStaticObjectField(m_jclass, fieldID, ((AndroidJavaObject)(object)val).m_jobject);
			}
			else if (typeof(System.Array).IsAssignableFrom(typeof(FieldType)))
			{
				IntPtr jobject = AndroidJNIHelper.ConvertToJNIArray((Array)(object)val);
				AndroidJNISafe.SetStaticObjectField(m_jclass, fieldID, jobject);
			}
			else
			{
				throw new Exception("JNI: Unknown field type '" + typeof(FieldType) + "'");
			}
		}

		internal static AndroidJavaObject AndroidJavaObjectDeleteLocalRef(IntPtr jobject)
		{
			try { return new AndroidJavaObject(jobject); } finally { AndroidJNISafe.DeleteLocalRef(jobject); }
		}

		internal static AndroidJavaClass AndroidJavaClassDeleteLocalRef(IntPtr jclass)
		{
			try { return new AndroidJavaClass(jclass); } finally { AndroidJNISafe.DeleteLocalRef(jclass); }
		}

		//===================================================================
		protected IntPtr _GetRawObject() { return m_jobject; }
		protected IntPtr _GetRawClass() { return m_jclass; }

		protected IntPtr m_jobject;
		protected IntPtr m_jclass;			// use this for static lookups; reset in subclases

		protected static AndroidJavaObject FindClass(string name)
		{
			return JavaLangClass.CallStatic<AndroidJavaObject>("forName", name.Replace('/', '.'));
		}

		private static AndroidJavaClass s_JavaLangClass;
		protected static AndroidJavaClass JavaLangClass
		{
			get
			{
				if (s_JavaLangClass == null)
					s_JavaLangClass = new AndroidJavaClass(AndroidJNISafe.FindClass("java/lang/Class"));
				return s_JavaLangClass;
			}
		}
	}

	public partial class AndroidJavaClass
	{
		private void _AndroidJavaClass(string className)
		{
			DebugPrint("Creating AndroidJavaClass from " + className);
			using (var clazz = FindClass(className))
			{
				m_jclass = AndroidJNI.NewGlobalRef(clazz.GetRawObject());
				m_jobject = IntPtr.Zero;
			}
		}

		internal AndroidJavaClass(IntPtr jclass)  // should be protected and friends with AndroidJNIHelper..
		{
			if (jclass == IntPtr.Zero)
			{
				throw new Exception("JNI: Init'd AndroidJavaClass with null ptr!");
			}

			m_jclass = AndroidJNI.NewGlobalRef(jclass);
			m_jobject = IntPtr.Zero;
		}
	}

	internal class AndroidReflection
	{
		private static IntPtr GetStaticMethodID(string clazz, string methodName, string signature)
		{
			IntPtr jclass = AndroidJNISafe.FindClass(clazz);
			try
			{
				return AndroidJNISafe.GetStaticMethodID(jclass, methodName, signature);
			}
			finally
			{
				AndroidJNISafe.DeleteLocalRef(jclass);
			}
		}

		private const string RELECTION_HELPER_CLASS_NAME = "com/unity3d/player/ReflectionHelper";
		private static IntPtr s_ReflectionHelperClass 				= AndroidJNI.NewGlobalRef(AndroidJNISafe.FindClass(RELECTION_HELPER_CLASS_NAME));
		private static IntPtr s_ReflectionHelperGetConstructorID	= GetStaticMethodID(RELECTION_HELPER_CLASS_NAME, "getConstructorID", "(Ljava/lang/Class;Ljava/lang/String;)Ljava/lang/reflect/Constructor;");
		private static IntPtr s_ReflectionHelperGetMethodID			= GetStaticMethodID(RELECTION_HELPER_CLASS_NAME, "getMethodID", "(Ljava/lang/Class;Ljava/lang/String;Ljava/lang/String;Z)Ljava/lang/reflect/Method;");
		private static IntPtr s_ReflectionHelperGetFieldID			= GetStaticMethodID(RELECTION_HELPER_CLASS_NAME, "getFieldID", "(Ljava/lang/Class;Ljava/lang/String;Ljava/lang/String;Z)Ljava/lang/reflect/Field;");
		private static IntPtr s_ReflectionHelperNewProxyInstance	= GetStaticMethodID(RELECTION_HELPER_CLASS_NAME, "newProxyInstance", "(ILjava/lang/Class;)Ljava/lang/Object;");

		public static IntPtr GetConstructorMember(IntPtr jclass, string signature)
		{
			jvalue[] jniArgs = new jvalue[2];
			try
			{
				jniArgs[0].l = jclass;
				jniArgs[1].l = AndroidJNISafe.NewStringUTF(signature);
				return AndroidJNISafe.CallStaticObjectMethod(s_ReflectionHelperClass, s_ReflectionHelperGetConstructorID, jniArgs);
			}
			finally
			{
				AndroidJNISafe.DeleteLocalRef(jniArgs[1].l);
			}
		}

		public static IntPtr GetMethodMember(IntPtr jclass, string methodName, string signature, bool isStatic)
		{
			jvalue[] jniArgs = new jvalue[4];
			try
			{
				jniArgs[0].l = jclass;
				jniArgs[1].l = AndroidJNISafe.NewStringUTF(methodName);
				jniArgs[2].l = AndroidJNISafe.NewStringUTF(signature);
				jniArgs[3].z = isStatic;
				return AndroidJNISafe.CallStaticObjectMethod(s_ReflectionHelperClass, s_ReflectionHelperGetMethodID, jniArgs);
			}
			finally
			{
				AndroidJNISafe.DeleteLocalRef(jniArgs[1].l);
				AndroidJNISafe.DeleteLocalRef(jniArgs[2].l);
			}
		}

		public static IntPtr GetFieldMember(IntPtr jclass, string fieldName, string signature, bool isStatic)
		{
			jvalue[] jniArgs = new jvalue[4];
			try
			{
				jniArgs[0].l = jclass;
				jniArgs[1].l = AndroidJNISafe.NewStringUTF(fieldName);
				jniArgs[2].l = AndroidJNISafe.NewStringUTF(signature);
				jniArgs[3].z = isStatic;
				return AndroidJNISafe.CallStaticObjectMethod(s_ReflectionHelperClass, s_ReflectionHelperGetFieldID, jniArgs);
			}
			finally
			{
				AndroidJNISafe.DeleteLocalRef(jniArgs[1].l);
				AndroidJNISafe.DeleteLocalRef(jniArgs[2].l);
			}
		}

		public static IntPtr NewProxyInstance(int delegateHandle, IntPtr interfaze)
		{
			jvalue[] jniArgs = new jvalue[2];
			jniArgs[0].i = delegateHandle;
			jniArgs[1].l = interfaze;
			return AndroidJNISafe.CallStaticObjectMethod(s_ReflectionHelperClass, s_ReflectionHelperNewProxyInstance, jniArgs);
		}
	}

	sealed class _AndroidJNIHelper
	{
		public static IntPtr CreateJavaProxy(int delegateHandle, AndroidJavaProxy proxy)
		{
			return AndroidReflection.NewProxyInstance(delegateHandle, proxy.javaInterface.GetRawClass());
		}

		public static IntPtr CreateJavaRunnable(AndroidJavaRunnable jrunnable)
		{
			return AndroidJNIHelper.CreateJavaProxy(new AndroidJavaRunnableProxy(jrunnable));
		}

		public static IntPtr InvokeJavaProxyMethod(AndroidJavaProxy proxy, IntPtr jmethodName, IntPtr jargs)
		{
			int arrayLen = AndroidJNISafe.GetArrayLength(jargs);
			AndroidJavaObject[] args = new AndroidJavaObject[arrayLen];
			for (int i = 0; i < arrayLen; ++i)
			{
				IntPtr objectRef = AndroidJNISafe.GetObjectArrayElement(jargs, i);
				args[i] = objectRef != IntPtr.Zero ? new AndroidJavaObject(objectRef) : null;
			}
			using (AndroidJavaObject result = proxy.Invoke(AndroidJNI.GetStringUTFChars(jmethodName), args))
			{
				if (result == null)
					return IntPtr.Zero;

				return AndroidJNI.NewLocalRef(result.GetRawObject());
			}
		}

		public static jvalue[] CreateJNIArgArray(object[] args)
		{
			jvalue[] ret = new jvalue[args.GetLength(0)];
			int i = 0;
			foreach( object obj in args)
			{
				if (obj == null)
					ret[i].l = System.IntPtr.Zero;
				else if (obj.GetType().IsPrimitive)
				{
					if (obj is System.Int32)
						ret[i].i = (System.Int32)obj;
					else if (obj is System.Boolean)
						ret[i].z = (System.Boolean)obj;
					else if (obj is System.Byte)
						ret[i].b = (System.Byte)obj;
					else if (obj is System.Int16)
						ret[i].s = (System.Int16)obj;
					else if (obj is System.Int64)
						ret[i].j = (System.Int64)obj;
					else if (obj is System.Single)
						ret[i].f = (System.Single)obj;
					else if (obj is System.Double)
						ret[i].d = (System.Double)obj;
					else if (obj is System.Char)
						ret[i].c = (System.Char)obj;
				}
				else if (obj is System.String)
				{
					ret[i].l = AndroidJNISafe.NewStringUTF((System.String)obj);
				}
				else if (obj is AndroidJavaClass)
				{
					ret[i].l = ((AndroidJavaClass)obj).GetRawClass();
				}
				else if (obj is AndroidJavaObject)
				{
					ret[i].l = ((AndroidJavaObject)obj).GetRawObject();
				}
				else if (obj is System.Array)
				{
					ret[i].l = ConvertToJNIArray((System.Array)obj);
				}
				else if (obj is AndroidJavaProxy)
				{
					ret[i].l = AndroidJNIHelper.CreateJavaProxy((AndroidJavaProxy)obj);
				}
				else if (obj is AndroidJavaRunnable)
				{
					ret[i].l = AndroidJNIHelper.CreateJavaRunnable((AndroidJavaRunnable)obj);
				}
				else
				{
					throw new Exception("JNI; Unknown argument type '" + obj.GetType() + "'");
				}
				++i;
			}
			return ret;
		}

		public static object UnboxArray(AndroidJavaObject obj)
		{
			if (obj == null)
				return null;

			AndroidJavaClass arrayUtil	= new AndroidJavaClass("java/lang/reflect/Array");
			AndroidJavaObject objClass	= obj.Call<AndroidJavaObject>("getClass");
			AndroidJavaObject compClass	= objClass.Call<AndroidJavaObject>("getComponentType");
			string className			= compClass.Call<string>("getName");

			int arrayLength = arrayUtil.Call<int>("getLength", obj);
			Array array;
			if (compClass.Call<bool>("IsPrimitive")) // need to setup primitive array
			{
				if ("I" == className)
					array = new int[arrayLength];
				else if ("Z" == className)
					array = new bool[arrayLength];
				else if ("B" == className)
					array = new byte[arrayLength];
				else if ("S" == className)
					array = new short[arrayLength];
				else if ("L" == className)
					array = new long[arrayLength];
				else if ("F" == className)
					array = new float[arrayLength];
				else if ("D" == className)
					array = new double[arrayLength];
				else if ("C" == className)
					array = new char[arrayLength];
				else
					throw new Exception("JNI; Unknown argument type '" + className + "'");
			}
			else if ("java.lang.String" == className)
				array = new string[arrayLength];
			else if ("java.lang.Class" == className)
				array = new AndroidJavaClass[arrayLength];
			else
				array = new AndroidJavaObject[arrayLength];

			for (int i = 0; i < arrayLength; ++i)
				array.SetValue(Unbox(arrayUtil.CallStatic<AndroidJavaObject>("get", obj, i)), i);

			return array;
		}

		public static object Unbox(AndroidJavaObject obj)
		{
			if (obj == null)
				return null;

			AndroidJavaObject clazz	= obj.Call<AndroidJavaObject>("getClass");
			string className		= clazz.Call<string>("getName");
			if ("java.lang.Integer" == className)
				return obj.Call<System.Int32>("intValue");
			else if ("java.lang.Boolean" == className)
				return obj.Call<System.Boolean>("booleanValue");
			else if ("java.lang.Byte" == className)
				return obj.Call<System.Byte>("byteValue");
			else if ("java.lang.Short" == className)
				return obj.Call<System.Int16>("shortValue");
			else if ("java.lang.Long" == className)
				return obj.Call<System.Int32>("longValue");
			else if ("java.lang.Float" == className)
				return obj.Call<System.Single>("floatValue");
			else if ("java.lang.Double" == className)
				return obj.Call<System.Double>("doubleValue");
			else if ("java.lang.Character" == className)
				return obj.Call<System.Char>("charValue");
			else if ("java.lang.String" == className)
				return obj.Call<System.String>("toString"); // um, can obvoiusly be performed in a better fasion
			else if ("java.lang.Class" == className)
				return new AndroidJavaClass(obj.GetRawObject());
			else if (clazz.Call<bool>("isArray"))
				return UnboxArray(obj);
			else
				return obj;
		}

		public static AndroidJavaObject Box(object obj)
		{
			if (obj == null)
				return null;
			else if (obj.GetType().IsPrimitive)
			{
				if (obj is System.Int32)
					return new AndroidJavaObject("java.lang.Integer", (System.Int32)obj);
				else if (obj is System.Boolean)
					return new AndroidJavaObject("java.lang.Boolean", (System.Boolean)obj);
				else if (obj is System.Byte)
					return new AndroidJavaObject("java.lang.Byte", (System.Byte)obj);
				else if (obj is System.Int16)
					return new AndroidJavaObject("java.lang.Short", (System.Int16)obj);
				else if (obj is System.Int64)
					return new AndroidJavaObject("java.lang.Long", (System.Int64)obj);
				else if (obj is System.Single)
					return new AndroidJavaObject("java.lang.Float", (System.Single)obj);
				else if (obj is System.Double)
					return new AndroidJavaObject("java.lang.Double", (System.Double)obj);
				else if (obj is System.Char)
					return new AndroidJavaObject("java.lang.Character", (System.Char)obj);
				else
					throw new Exception("JNI; Unknown argument type '" + obj.GetType() + "'");
			}
			else if (obj is System.String)
			{
				return new AndroidJavaObject("java.lang.String", (System.String)obj);
			}
			else if (obj is AndroidJavaClass)
			{
				return new AndroidJavaObject(((AndroidJavaClass)obj).GetRawClass());
			}
			else if (obj is AndroidJavaObject)
			{
				return (AndroidJavaObject)obj;
			}
			else if (obj is System.Array)
			{
				return AndroidJavaObject.AndroidJavaObjectDeleteLocalRef(ConvertToJNIArray((System.Array)obj));
			}
			else if (obj is AndroidJavaProxy)
			{
				return AndroidJavaObject.AndroidJavaObjectDeleteLocalRef(AndroidJNIHelper.CreateJavaProxy((AndroidJavaProxy)obj));
			}
			else if (obj is AndroidJavaRunnable)
			{
				return AndroidJavaObject.AndroidJavaObjectDeleteLocalRef(AndroidJNIHelper.CreateJavaRunnable((AndroidJavaRunnable)obj));
			}
			else
			{
				throw new Exception("JNI; Unknown argument type '" + obj.GetType() + "'");
			}
		}

		public static void DeleteJNIArgArray(object[] args, jvalue[] jniArgs)
		{
			int i = 0;
			foreach (object obj in args)
			{
				if (obj is System.String || obj is AndroidJavaRunnable || obj is AndroidJavaProxy || obj is System.Array)
					AndroidJNISafe.DeleteLocalRef(jniArgs[i].l);

				++i;
			}
		}

		public static IntPtr ConvertToJNIArray(System.Array array)
		{
			Type type = array.GetType().GetElementType();
			if (type.IsPrimitive)
			{
				if (type == typeof(Int32))
					return AndroidJNISafe.ToIntArray((Int32[])array);
				else if (type == typeof(Boolean))
					return AndroidJNISafe.ToBooleanArray((Boolean[])array);
				else if (type == typeof(Byte))
					return AndroidJNISafe.ToByteArray((Byte[])array);
				else if (type == typeof(Int16))
					return AndroidJNISafe.ToShortArray((Int16[])array);
				else if (type == typeof(Int64))
					return AndroidJNISafe.ToLongArray((Int64[])array);
				else if (type == typeof(Single))
					return AndroidJNISafe.ToFloatArray((Single[])array);
				else if (type == typeof(Double))
					return AndroidJNISafe.ToDoubleArray((Double[])array);
				else if (type == typeof(Char))
					return AndroidJNISafe.ToCharArray((Char[])array);
			}
			else if (type == typeof(String))
			{
				String[] strArray = (string[])array;
				int arrayLen = array.GetLength(0);
				IntPtr[] jniStrs = new IntPtr[arrayLen];
				for (int i = 0; i < arrayLen; ++i)
				{
					jniStrs[i] = AndroidJNISafe.NewStringUTF(strArray[i]);
				}
				return AndroidJNISafe.ToObjectArray(jniStrs);
			}
			else if (type == typeof(AndroidJavaObject))
			{
				AndroidJavaObject[] objArray = (AndroidJavaObject[])array;
				int arrayLen = array.GetLength(0);
				IntPtr[] jniObjs = new IntPtr[arrayLen];
				for (int i = 0; i < arrayLen; ++i)
				{
					jniObjs[i] = objArray[i] == null ? IntPtr.Zero : objArray[i].GetRawObject();
				}
				return AndroidJNISafe.ToObjectArray(jniObjs);
			}
			else
			{
				throw new Exception("JNI; Unknown array type '" + type + "'");
			}
			return IntPtr.Zero;
		}
		public static ArrayType ConvertFromJNIArray<ArrayType>(IntPtr array)
		{
			Type type = typeof(ArrayType).GetElementType();
			if (type.IsPrimitive)
			{
				if (type == typeof(Int32))
					return (ArrayType)(object)AndroidJNISafe.FromIntArray(array);
				else if (type == typeof(Boolean))
					return (ArrayType)(object)AndroidJNISafe.FromBooleanArray(array);
				else if (type == typeof(Byte))
					return (ArrayType)(object)AndroidJNISafe.FromByteArray(array);
				else if (type == typeof(Int16))
					return (ArrayType)(object)AndroidJNISafe.FromShortArray(array);
				else if (type == typeof(Int64))
					return (ArrayType)(object)AndroidJNISafe.FromLongArray(array);
				else if (type == typeof(Single))
					return (ArrayType)(object)AndroidJNISafe.FromFloatArray(array);
				else if (type == typeof(Double))
					return (ArrayType)(object)AndroidJNISafe.FromDoubleArray(array);
				else if (type == typeof(Char))
					return (ArrayType)(object)AndroidJNISafe.FromCharArray(array);
			}
			else if (type == typeof(String))
			{
				IntPtr[] jniStrs = AndroidJNISafe.FromObjectArray(array);
				int arrayLen = jniStrs.GetLength(0);
				string[] strArray = new string[arrayLen];
				for (int i = 0; i < arrayLen; ++i)
				{
					strArray[i] = AndroidJNISafe.GetStringUTFChars(jniStrs[i]);
				}
				return (ArrayType)(object)strArray;
			}
			else if (type == typeof(AndroidJavaObject))
			{
				IntPtr[] jniObjs = AndroidJNISafe.FromObjectArray(array);
				int arrayLen = jniObjs.GetLength(0);
				AndroidJavaObject[] objArray = new AndroidJavaObject[arrayLen];
				for (int i = 0; i < arrayLen; ++i)
				{
					objArray[i] = new AndroidJavaObject(jniObjs[i]);
				}
				return (ArrayType)(object)objArray;
			}
			else
			{
				throw new Exception("JNI: Unknown generic array type '" + type + "'");
			}
			return default(ArrayType);
		}

		public static System.IntPtr GetConstructorID(System.IntPtr jclass, object[] args)
		{
			return AndroidJNIHelper.GetConstructorID(jclass, GetSignature(args));
		}
		public static System.IntPtr GetMethodID(System.IntPtr jclass, string methodName, object[] args, bool isStatic)
		{
			return AndroidJNIHelper.GetMethodID(jclass, methodName, GetSignature(args), isStatic);
		}
		public static System.IntPtr GetMethodID<ReturnType>(System.IntPtr jclass, string methodName, object[] args, bool isStatic)
		{
			return AndroidJNIHelper.GetMethodID(jclass, methodName, GetSignature<ReturnType>(args), isStatic);
		}
		public static System.IntPtr GetFieldID<ReturnType>(System.IntPtr jclass, string fieldName, bool isStatic)
		{
			return AndroidJNIHelper.GetFieldID(jclass, fieldName, GetSignature(typeof(ReturnType)), isStatic);
		}

		public static IntPtr GetConstructorID(IntPtr jclass, string signature)
		{
			IntPtr constructor = IntPtr.Zero;
			try
			{
				constructor = AndroidReflection.GetConstructorMember(jclass, signature);
				return AndroidJNISafe.FromReflectedMethod(constructor);
			}
			catch (Exception e)
			{
				IntPtr memberID = AndroidJNISafe.GetMethodID(jclass, "<init>", signature);
				if (memberID != IntPtr.Zero)
					return memberID;
				throw e;
			}
			finally
			{
				AndroidJNISafe.DeleteLocalRef(constructor);
			}
		}

		public static IntPtr GetMethodID(IntPtr jclass, string methodName, string signature, bool isStatic)
		{
			IntPtr method = IntPtr.Zero;
			try
			{
				method = AndroidReflection.GetMethodMember(jclass, methodName, signature, isStatic);
				return AndroidJNISafe.FromReflectedMethod(method);
			}
			catch (Exception e)
			{
				IntPtr memberID = isStatic
					? AndroidJNISafe.GetStaticMethodID(jclass, methodName, signature)
					: AndroidJNISafe.GetMethodID(jclass, methodName, signature);
				if (memberID != IntPtr.Zero)
					return memberID;
				throw e;
			}
			finally
			{
				AndroidJNISafe.DeleteLocalRef(method);
			}
		}

		public static IntPtr GetFieldID(IntPtr jclass, string fieldName, string signature, bool isStatic)
		{
			IntPtr field = IntPtr.Zero;
			try
			{
				field = AndroidReflection.GetFieldMember(jclass, fieldName, signature, isStatic);
				return AndroidJNISafe.FromReflectedField(field);
			}
			catch (Exception e)
			{
				IntPtr memberID = isStatic
					? AndroidJNISafe.GetStaticFieldID(jclass, fieldName, signature)
					: AndroidJNISafe.GetFieldID(jclass, fieldName, signature);
				if (memberID != IntPtr.Zero)
					return memberID;
				throw e;
			}
			finally
			{
				AndroidJNISafe.DeleteLocalRef(field);
			}
		}

		public static string GetSignature(object obj)
		{
			if (obj == null)
				return "Ljava/lang/Object;";
			System.Type type = (obj is System.Type) ? (System.Type)obj : obj.GetType();
			if (type.IsPrimitive)
			{
				if (type.Equals(typeof(System.Int32)))
					return "I";
				else if (type.Equals(typeof(System.Boolean)))
					return "Z";
				else if (type.Equals(typeof(System.Byte)))
					return "B";
				else if (type.Equals(typeof(System.Int16)))
					return "S";
				else if (type.Equals(typeof(System.Int64)))
					return "J";
				else if (type.Equals(typeof(System.Single)))
					return "F";
				else if (type.Equals(typeof(System.Double)))
					return "D";
				else if (type.Equals(typeof(System.Char)))
					return "C";
			}
			else if (type.Equals(typeof(System.String)))
			{
				return "Ljava/lang/String;";
			}
			else if (obj is AndroidJavaProxy)
			{
				AndroidJavaObject javaClass = new AndroidJavaObject(((AndroidJavaProxy) obj).javaInterface.GetRawClass());
				return "L" + javaClass.Call<System.String>("getName") + ";";
			}
			else if (type.Equals(typeof(AndroidJavaRunnable)))
			{
				return "Ljava/lang/Runnable;";
			}
			else if (type.Equals(typeof(AndroidJavaClass)))
			{
				return "Ljava/lang/Class;";
			}
			else if (type.Equals(typeof(AndroidJavaObject)))
			{
				if (obj == type)
				{
					return "Ljava/lang/Object;";
				}
				AndroidJavaObject javaObject = (AndroidJavaObject)obj;
				using (AndroidJavaObject javaClass = javaObject.Call<AndroidJavaObject>("getClass"))
				{
					return "L" + javaClass.Call<System.String>("getName") + ";";
				}
			}
			else if (typeof(System.Array).IsAssignableFrom(type))
			{
				if (type.GetArrayRank() != 1)
				{
					throw new Exception("JNI: System.Array in n dimensions is not allowed");
				}
				System.Text.StringBuilder sb = new System.Text.StringBuilder();
				sb.Append('[');
				sb.Append(GetSignature(type.GetElementType()));
				return sb.ToString();
			}
			else
			{
				throw new Exception("JNI: Unknown signature for type '" + type + "' (obj = " + obj + ") " + (type == obj? "equal":"instance"));
			}
			return "";
		}
		public static string GetSignature(object[] args)
		{
			System.Text.StringBuilder sb = new System.Text.StringBuilder();
			sb.Append('(');
			foreach (object obj in args)
			{
				sb.Append(GetSignature(obj));
			}
			sb.Append(")V");
			return sb.ToString();
		}

		public static string GetSignature<ReturnType>(object[] args)
		{
			System.Text.StringBuilder sb = new System.Text.StringBuilder();
			sb.Append('(');
			foreach (object obj in args)
			{
				sb.Append(GetSignature(obj));
			}
			sb.Append(')');
			sb.Append(GetSignature(typeof(ReturnType)));
			return sb.ToString();
		}
	}
}

#endif // UNITY_EDITOR || UNITY_ANDROID
